A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridge deck slab structure
The invention discloses a bridge deck slab structure which comprises an upper layer and a lower layer, the upper layer is a cast-in-place concrete slab, the lower layer comprises a plurality of prefabricated slabs, the prefabricated slabs are plain concrete slabs, the prefabricated slabs are provided with edge covering section steel at least along two slab edges in the transverse bridge direction, the thickness of the prefabricated slabs is 2-4 cm, and the thickness of the prefabricated slabs is 2-4 cm. The prefabricated slab is a concrete member with the compressive strength larger than or equal to 150 MPa and the flexural-tensile strength larger than or equal to 20 MPa. According to the bridge deck slab structure, the thickness of the prefabricated slab is reduced to 2-4 cm by using the high-strength and high-toughness concrete and edge covering profile steel technology, the thickness of the cast-in-place concrete slab on the upper layer is increased by reducing the thickness of the prefabricated slab, namely, the section height of the cast-in-place concrete slab is increased, and therefore the bearing capacity of the cast-in-place concrete slab is improved, and the service life of the cast-in-place concrete slab is prolonged. Therefore, the structural rigidity and the structural strength of the combined bridge deck slab are improved, the overall bearing capacity of the combined bridge deck slab is improved, the bridge deck slab is prevented from cracking, and the safety of a bridge is guaranteed.
本发明公开了一种桥面板结构，包括：上层和下层，上层为现浇混凝土板，下层包括若干个预制板，所述预制板为素混凝土板，所述预制板至少沿横桥向的两个板边设置有包边型钢，所述预制板的厚度为2‑4厘米，所述预制板为抗压强度大于或等于150MPa、弯拉强度大于或等于20MPa的混凝土构件。本发明的桥面板结构通过使用高强高韧混凝土和包边型钢技术，实现了将预制板的厚度减少为2‑4厘米，通过预制板的厚度降低，增加了上层的现浇混凝土板的厚度，即增加了现浇混凝土板的截面高度，从而提高了现浇混凝土板的承载力，进而提高了组合式桥面板的结构刚度和结构强度，使其整体承载力提升，防止桥面板开裂，保证了桥梁的安全。
Bridge deck slab structure
The invention discloses a bridge deck slab structure which comprises an upper layer and a lower layer, the upper layer is a cast-in-place concrete slab, the lower layer comprises a plurality of prefabricated slabs, the prefabricated slabs are plain concrete slabs, the prefabricated slabs are provided with edge covering section steel at least along two slab edges in the transverse bridge direction, the thickness of the prefabricated slabs is 2-4 cm, and the thickness of the prefabricated slabs is 2-4 cm. The prefabricated slab is a concrete member with the compressive strength larger than or equal to 150 MPa and the flexural-tensile strength larger than or equal to 20 MPa. According to the bridge deck slab structure, the thickness of the prefabricated slab is reduced to 2-4 cm by using the high-strength and high-toughness concrete and edge covering profile steel technology, the thickness of the cast-in-place concrete slab on the upper layer is increased by reducing the thickness of the prefabricated slab, namely, the section height of the cast-in-place concrete slab is increased, and therefore the bearing capacity of the cast-in-place concrete slab is improved, and the service life of the cast-in-place concrete slab is prolonged. Therefore, the structural rigidity and the structural strength of the combined bridge deck slab are improved, the overall bearing capacity of the combined bridge deck slab is improved, the bridge deck slab is prevented from cracking, and the safety of a bridge is guaranteed.
本发明公开了一种桥面板结构，包括：上层和下层，上层为现浇混凝土板，下层包括若干个预制板，所述预制板为素混凝土板，所述预制板至少沿横桥向的两个板边设置有包边型钢，所述预制板的厚度为2‑4厘米，所述预制板为抗压强度大于或等于150MPa、弯拉强度大于或等于20MPa的混凝土构件。本发明的桥面板结构通过使用高强高韧混凝土和包边型钢技术，实现了将预制板的厚度减少为2‑4厘米，通过预制板的厚度降低，增加了上层的现浇混凝土板的厚度，即增加了现浇混凝土板的截面高度，从而提高了现浇混凝土板的承载力，进而提高了组合式桥面板的结构刚度和结构强度，使其整体承载力提升，防止桥面板开裂，保证了桥梁的安全。
Bridge deck slab structure
一种桥面板结构
KANG LING (author) / MOU TINGMIN (author) / FAN BIKUN (author) / RUAN FEIPENG (author) / ZHANG YI (author) / WANG HUAN (author) / ZOU QI (author) / LI WEI (author)
2022-09-16
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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